From patchwork Wed Jul 1 08:21:50 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Boris Brezillon X-Patchwork-Id: 489921 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 2BC1F1402C0 for ; Wed, 1 Jul 2015 18:23:03 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753629AbbGAIXC (ORCPT ); Wed, 1 Jul 2015 04:23:02 -0400 Received: from down.free-electrons.com ([37.187.137.238]:34285 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752950AbbGAIWP (ORCPT ); Wed, 1 Jul 2015 04:22:15 -0400 Received: by mail.free-electrons.com (Postfix, from userid 106) id B15EE2420; Wed, 1 Jul 2015 10:22:16 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on mail.free-electrons.com X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=ALL_TRUSTED,SHORTCIRCUIT, URIBL_BLOCKED shortcircuit=ham autolearn=disabled version=3.4.0 Received: from localhost.localdomain (col31-4-88-188-83-94.fbx.proxad.net [88.188.83.94]) by mail.free-electrons.com (Postfix) with ESMTPSA id 9D7391F4E; Wed, 1 Jul 2015 10:22:15 +0200 (CEST) From: Boris Brezillon To: Thierry Reding , linux-pwm@vger.kernel.org Cc: Mark Brown , Liam Girdwood , Bryan Wu , Richard Purdie , Jacek Anaszewski , linux-leds@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Jean-Christophe Plagniol-Villard , Tomi Valkeinen , linux-fbdev@vger.kernel.org, Stephen Warren , Alexandre Courbot , linux-tegra@vger.kernel.org, Maxime Ripard , Jingoo Han , Lee Jones , Doug Anderson , Boris Brezillon Subject: [RFC PATCH 04/15] pwm: make use of pwm_get_xxx helpers where appropriate Date: Wed, 1 Jul 2015 10:21:50 +0200 Message-Id: <1435738921-25027-5-git-send-email-boris.brezillon@free-electrons.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1435738921-25027-1-git-send-email-boris.brezillon@free-electrons.com> References: <1435738921-25027-1-git-send-email-boris.brezillon@free-electrons.com> Sender: linux-pwm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pwm@vger.kernel.org Use the pwm_get_xxx helpers instead of directly accessing the fields in pwm_device. This will allow us to smoothly move to the atomic update approach. Signed-off-by: Boris Brezillon --- drivers/pwm/pwm-atmel.c | 2 +- drivers/pwm/pwm-bcm-kona.c | 3 ++- drivers/pwm/pwm-imx.c | 3 ++- drivers/pwm/pwm-rockchip.c | 2 +- drivers/pwm/sysfs.c | 11 ++++++----- 5 files changed, 12 insertions(+), 9 deletions(-) diff --git a/drivers/pwm/pwm-atmel.c b/drivers/pwm/pwm-atmel.c index b3b294d..0e4bd4e 100644 --- a/drivers/pwm/pwm-atmel.c +++ b/drivers/pwm/pwm-atmel.c @@ -114,7 +114,7 @@ static int atmel_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, u32 val; int ret; - if (pwm_is_enabled(pwm) && (period_ns != pwm->period)) { + if (pwm_is_enabled(pwm) && (period_ns != pwm_get_period(pwm))) { dev_err(chip->dev, "cannot change PWM period while enabled\n"); return -EBUSY; } diff --git a/drivers/pwm/pwm-bcm-kona.c b/drivers/pwm/pwm-bcm-kona.c index dfdcf88..920cd1b 100644 --- a/drivers/pwm/pwm-bcm-kona.c +++ b/drivers/pwm/pwm-bcm-kona.c @@ -194,7 +194,8 @@ static int kona_pwmc_enable(struct pwm_chip *chip, struct pwm_device *pwm) return ret; } - ret = kona_pwmc_config(chip, pwm, pwm->duty_cycle, pwm->period); + ret = kona_pwmc_config(chip, pwm, pwm_get_duty_cycle(pwm), + pwm_get_period(pwm)); if (ret < 0) { clk_disable_unprepare(kp->clk); return ret; diff --git a/drivers/pwm/pwm-imx.c b/drivers/pwm/pwm-imx.c index 008dc64..d600fd5 100644 --- a/drivers/pwm/pwm-imx.c +++ b/drivers/pwm/pwm-imx.c @@ -129,7 +129,8 @@ static int imx_pwm_config_v2(struct pwm_chip *chip, sr = readl(imx->mmio_base + MX3_PWMSR); fifoav = sr & MX3_PWMSR_FIFOAV_MASK; if (fifoav == MX3_PWMSR_FIFOAV_4WORDS) { - period_ms = DIV_ROUND_UP(pwm->period, NSEC_PER_MSEC); + period_ms = DIV_ROUND_UP(pwm_get_period(pwm), + NSEC_PER_MSEC); msleep(period_ms); sr = readl(imx->mmio_base + MX3_PWMSR); diff --git a/drivers/pwm/pwm-rockchip.c b/drivers/pwm/pwm-rockchip.c index 9442df2..7d9cc90 100644 --- a/drivers/pwm/pwm-rockchip.c +++ b/drivers/pwm/pwm-rockchip.c @@ -83,7 +83,7 @@ static void rockchip_pwm_set_enable_v2(struct pwm_chip *chip, PWM_CONTINUOUS; u32 val; - if (pwm->polarity == PWM_POLARITY_INVERSED) + if (pwm_get_polarity(pwm) == PWM_POLARITY_INVERSED) enable_conf |= PWM_DUTY_NEGATIVE | PWM_INACTIVE_POSITIVE; else enable_conf |= PWM_DUTY_POSITIVE | PWM_INACTIVE_NEGATIVE; diff --git a/drivers/pwm/sysfs.c b/drivers/pwm/sysfs.c index eecf21d..ac0abec 100644 --- a/drivers/pwm/sysfs.c +++ b/drivers/pwm/sysfs.c @@ -46,7 +46,7 @@ static ssize_t pwm_period_show(struct device *child, { const struct pwm_device *pwm = child_to_pwm_device(child); - return sprintf(buf, "%u\n", pwm->period); + return sprintf(buf, "%u\n", pwm_get_period(pwm)); } static ssize_t pwm_period_store(struct device *child, @@ -61,7 +61,7 @@ static ssize_t pwm_period_store(struct device *child, if (ret) return ret; - ret = pwm_config(pwm, pwm->duty_cycle, val); + ret = pwm_config(pwm, pwm_get_duty_cycle(pwm), val); return ret ? : size; } @@ -72,7 +72,7 @@ static ssize_t pwm_duty_cycle_show(struct device *child, { const struct pwm_device *pwm = child_to_pwm_device(child); - return sprintf(buf, "%u\n", pwm->duty_cycle); + return sprintf(buf, "%u\n", pwm_get_duty_cycle(pwm)); } static ssize_t pwm_duty_cycle_store(struct device *child, @@ -87,7 +87,7 @@ static ssize_t pwm_duty_cycle_store(struct device *child, if (ret) return ret; - ret = pwm_config(pwm, val, pwm->period); + ret = pwm_config(pwm, val, pwm_get_period(pwm)); return ret ? : size; } @@ -134,7 +134,8 @@ static ssize_t pwm_polarity_show(struct device *child, { const struct pwm_device *pwm = child_to_pwm_device(child); - return sprintf(buf, "%s\n", pwm->polarity ? "inversed" : "normal"); + return sprintf(buf, "%s\n", + pwm_get_polarity(pwm) ? "inversed" : "normal"); } static ssize_t pwm_polarity_store(struct device *child,